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Kawamura T, Nishimura H, Koike F, et al. Population kinetics on K alpha lines of partially ionized Cl atoms. Phys Rev E Stat Nonlin Soft Matter Phys. 2002;66(1):016402doi: 10.1103/PhysRevE.66.016402.
Kawamura, T., Nishimura, H., Koike, F., Ochi, Y., Matsui, R., Miao, W. Y., Okihara, S., Sakabe, S., Uschmann, I., Förster, E., & Mima, K. (2002). Population kinetics on K alpha lines of partially ionized Cl atoms. Physical review. E, Statistical, nonlinear, and soft matter physics, 66(1), 016402. https://doi.org/10.1103/PhysRevE.66.016402
Kawamura, Tohru, et al. "Population kinetics on K alpha lines of partially ionized Cl atoms." Physical review. E, Statistical, nonlinear, and soft matter physics vol. 66,1 (2002): 016402. doi: https://doi.org/10.1103/PhysRevE.66.016402
Kawamura T, Nishimura H, Koike F, Ochi Y, Matsui R, Miao WY, Okihara S, Sakabe S, Uschmann I, Förster E, Mima K. Population kinetics on K alpha lines of partially ionized Cl atoms. Phys Rev E Stat Nonlin Soft Matter Phys. 2002 Jul;66(1):016402. doi: 10.1103/PhysRevE.66.016402. Epub 2002 Jul 12. PMID: 12241485.
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Phys Rev E Stat Nonlin Soft Matter Phys. 2002 Jul;66(1):016402. doi: 10.1103/PhysRevE.66.016402. Epub 2002 Jul 12.

Population kinetics on K alpha lines of partially ionized Cl atoms.

Physical review. E, Statistical, nonlinear, and soft matter physics

Tohru Kawamura, Hiroaki Nishimura, Fumihiro Koike, Yoshihiro Ochi, Ryoji Matsui, Wen Yong Miao, Shinichiro Okihara, Shuji Sakabe, Ingo Uschmann, Eckhart Förster, Kunioki Mima

Affiliations

  1. Institute of Laser Engineering, Osaka University, 2-6 Yamada-Oka, Suita, Osaka 565-0871, Japan. [email protected]

PMID: 12241485 DOI: 10.1103/PhysRevE.66.016402

Abstract

A population kinetics code was developed to analyze K alpha emission from partially ionized chlorine atoms in hydrocarbon plasmas. Atomic processes are solved under collisional-radiative equilibrium for two-temperature plasmas. It is shown that the fast electrons dominantly contribute to ionize the K-shell bound electrons (i.e., inner-shell ionization) and the cold electrons to the outer-shell bound ones. Ratios of K alpha lines of partially ionized atoms are presented as a function of cold-electron temperature. The model was validated by observation of the K alpha lines from a chlorinated plastic target irradiated with 1 TW Ti:sapphire laser pulses at 1.5 x 10(17) W/cm(2), inferring a plasma temperature of about 100 eV on the target surface.

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